Home / 68,289.45-102,403.44-26,140.03

Finding the Fourth Proportional to 68,289.45, 102,403.44 and 26,140.03

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Solution

The fourth proportional to 68,289.45, 102,403.44 and 26,140.03 is: 39,198.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,289.45 : 102,403.44 = 26,140.03 : x
  2. Step 2: Convert to fraction form
    68,289.45/102,403.44 = 26,140.03/x
  3. Step 3: Cross multiply
    68,289.45x = 102,403.44 × 26,140.03
  4. Step 4: Simplify right side
    68,289.45x = 2,676,829,313.71
  5. Step 5: Solve for x
    x = 2,676,829,313.71/68,289.45
  6. Step 6: Final answer
    x = 39,198.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.